Flight Chengdu Shuangliu International Airport departs from Chengdu Chengdu Shuangliu International Airport at 16:00 and arrives at Beijing Beijing Capital International Airport at 19:00.
The flighttime is about 2h 00m. The distance travelled ("as the bird flies"): 1449 Km. So the average speed is roughly 724 Km.
There is an 1 hour time difference between Chengdu and Beijing